Superior critical current density obtained in MgB2 bulks through low-cost carbon-encapsulated boron powder. (15th July 2015)

• Record Type: Journal Article
• Authors: Barua, Shaon; Hossain, Md Shahriar Al; Ma, Zongqing; Patel, Dipak; Mustapic, Mislav; Somer, Mehmet; Acar, Selcuk; Kokal, Ilkin; Morawski, Andrzej; Cetner, T.; Gajda, Daniel; Dou, Shi Xue
• Is Part Of: Scripta materialia. Volume 104(2015)
• Page Start: 37
• Page End: 40
• Publication Date: 2015-07-15
• Subjects: Carbon-encapsulated boron -- Critical current density -- MgB2 -- Impurity scattering; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2015.04.003
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract : The unavailability of high quality precursor is encouraging researchers to seek effective ways to fabricate magnesium diboride (MgB2 ) wire. Herein, cost-effective amorphous boron powder produced through a diborane (B2 H6 ) gas process is investigated for the possibility of further industrial application. A thin carbon layer to encapsulate the boron particles is simultaneously deposited by pyrolysis of hydrocarbon. We found that the carbon-encapsulated amorphous boron has a high upper critical field due to impurity scattering, and thereby, enhanced high-field critical current density.